电信科学 ›› 2012, Vol. 28 ›› Issue (10): 111-119.doi: 10.3969/j.issn.1000-0801.2012.10.019

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物联网中物理实体搜索服务的研究

于海宁,张宏莉,方滨兴,余翔湛   

  1. 哈尔滨工业大学计算机网络与信息安全研究中心 哈尔滨150001
  • 出版日期:2012-10-15 发布日期:2017-07-05
  • 基金资助:
    国家自然科学基金资助项目;国家自然科学基金资助项目;技术研究发展计划(“863”计划)基金资助项目

Research on Search Service for Physical Entities in the Internet of Things

Haining Yu,Hongli Zhang,Binxing Fang,Xiangzhan Yu   

  1. Research Center of Computer Network and Information Security Technology, Harbin Institute of Technology, Harbin 150001, China
  • Online:2012-10-15 Published:2017-07-05

摘要:

物联网的远景规划是实现物理世界和信息世界的无缝整合,物理实体的搜索服务是物联网发展路线上的关键环节之一。用户利用物理实体的搜索服务从海量动态的物理实体中寻找匹配其需求的物理实体。物理实体除具有静态属性外,还具有实时变化的动态属性,此外还与语境信息紧密相关。本文首先提出一个元数据模型来刻画物理实体及相关的资源和实体服务;然后提出用于衡量物理实体搜索服务的特征,并利用这些特征对具有代表性的搜索服务进行总结、分析和对比,指出它们的优缺点;最后对物理实体搜索服务未来可能的研究策略与突破方向进行展望。

关键词: 物联网, 搜索服务, 物理实体, 资源, 实体服务, 元数据模型

Abstract:

The aim of internet of things is to integrate digital world and physical world seamlessly, search service for physical entities is one of key steps of the development of internet of things. Search service for physical entities enables users or applications to find those physical entities matching a set of requirements from huge amounts of dynamic physical entities. Physical entities, which are tightly bound to contextual information, not only contain static properties, but also real-time dynamic properties. Therefore, this paper proposes a metadata model to describe physical entity, its resource and entity service. Moreover, it considers characteristics used to estimate a search service for physical entities. Then, it refers to these characteristics to analyze and compare the representative search services for physical entities, and also discusses their advantages and disadvantages. Finally, it proposes open research issues and possible directions of future research related to the search service for physical entities.

Key words: internet of things, search service, physical entity, resource, entity service, metadata model

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